Power measurement profileShelly
Plug US Gen4
Measuring North American plug-in appliances and logging consumption through a complete operating cycle.
Official specification snapshot
Know the meter’s limit before the load.
AC power and energy
- Supply / sockets
- 120V AC · Type A/B
- Maximum current
- 15A
- Maximum output
- 1,800W
- Metering
- Real-time power and energy
Safe workflow
From connection to useful number.
- 01Confirm a 120V Type A/B supply
- 02Check the appliance stays within 15A / 1,800W
- 03Measure a complete duty cycle
- 04Use both average watts and observed peak where available
Evidence checked 2026-08-22
Open Shelly USA official product page ↗Read the exact manufacturer instructions.
Product revisions, plugs and certifications can differ by country. Confirm the exact regional model in the official instructions; the documented limit always overrides this summary.